Riser laminations ---------- 185 degrees
Limb laminations ----------- 170 degrees
Limb tip & Riser accents --- 145 degrees
That should work,I usually just unscrew a couple bulbs in the center of my hotbox for the full bow glueup,on my onepieces,the riser is clamped up too.
I like about 70-75 degrees,if you get it too preheated,it will speed up the set,almost got caught one hot summers day,almost didn't get the bow together quick enuff! It still turned out ,but the glue was getting thick before we got done!